Dr Karl

Gold originally came from exploding stars, but there are many layers to the story of how this precious metal found its way into eucalyptus trees. Dr Karl unearths more golden nuggets of geochemistry. 6
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If you're only looking for evidence of warming in our atmosphere you're missing 95 per cent of the actual warming of our planet. Dr Karl sets the record straight on claims global warming is over. 102
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Sometimes described as an answer looking for a question, Dr Karl explains science as you've never heard it before each week on Great Moments in Science and his regular Thursday morning talkback on triplej.